Complexes of palladium and platinum with tetraethyl diphosphite and related ligands
作者:Raymond J. Haines、Alan Pidcock、Mohammad Safari
DOI:10.1039/dt9770000830
日期:——
Tetraethyl diphosphite (L1) forms complexes [M2Cl4L12](M = Pd or Pt), [Pt2Cl4L1(PMe2Ph)2](2), and [Pt2L12(PMe2Ph)4][BPh4]4 in which it forms bidentate bridges between two metal atoms. Bis(OO′-ethylene) diphosphite (L2) is unidentate in cis-[MCl2L22](M = Pd or Pt) and bridging in (2) and in similar complexes. 1,1,3,3-Tetraethoxy-2-ethyldiphosphazane (L4) and 2-ethyl-1,1,3,3-tetraphenoxydiphosphazane
四亚乙基四亚磷酸酯(L 1)形成络合物[M 2 Cl 4 L 1 2 ](M = Pd或Pt),[Pt 2 Cl 4 L 1(PMe 2 Ph)2 ](2)和[Pt 2 L 1 2(PMe 2 Ph)4 ] [BPh 4 ] 4,其中它在两个金属原子之间形成双齿桥。双(OO'-乙烯)亚磷酸二酯(L 2)在顺式[[MCl 2 L 2 2 ]中是未知的](M = Pd或Pt)并桥接(2)和类似的络合物。1,1,3,3-四乙氧基-2-乙基二磷氮烷(L 4)和2-乙基-1,1,3,3-四苯氧基二磷氮烷(L 5)形成螯合物[MCl 2 L](M = Pt,L = L 4; M = Pd或Pt,L = L 5)。这些配体形成的复合物的化学计量学上的差异提供了解释。